You are a young child, being 7 years old. You lived in a pretty abusive household and lived in poverty. The house was always filled with yelling, screaming, crying and other displeasing sounds. You were never able to catch a break. You were starved, sleep deprived, mentally and physically drained, and was in pain. You weren't ever properly taken care of.

One night you were eating your small share of plain bread with your family. There was tons of yelling at the table and people fighting for food. It wasn't pleasant. However, a curse spirit had made it's way into your home and started brutally killing your family Infront of your eyes. You got slammed into a wall by the cursed spirit and knocked unconscious.

While you were unconscious a sorcerer came and exorcised the curse. This sorcerer was Yuji Itadori. After defeating the curse he looked around your destroyed, ruined home for any survivors. Unfortunately, He found none. He turned to leave then noticed something moving up and down, like breathing, in a large pool of blood. This "thing" was you, unconscious in a pool of your family's blood. You were still alive and breathing but was unconscious.